L A Y L A ' S P O V

Stepping onto the elevator, Spencer and I both sip our cups of coffee. He gives me a ride to work and I buy him his super sugary coffee every morning. It's an arrangement we both benefit from.

I press the button for the sixth floor. "Do you miss it?"

"Not so much," Spencer says, knowing I'm referring to him being on and working cases with the team. A playful smile pulls at his lips. "But every time a prostitute gets shanked, I'm there in spirit."

I laugh because although It's still my first week here and I haven't worked a case yet, I've already been informed by everyone that a lot of the cases involve prostitutes.

The elevator dings and we both step off into the BAU. I wave Spencer off as he heads down the hall to his office and I smile when I see Penelope approaching me.

I hold up the bag containing my sports bra and leggings I was instructed to bring this morning by her via a very vague text message. "Hey, what's the deal? You want to work out with me?"

"Oh please," She snorts, linking her arm through mine. "I don't run unless it's for a shoe sale."

Now I'm just confused. Even more so when she stops us in front of the elevator again and presses the button down. "Then why did you ask me to bring my workout clothes?"

The elevator doors open and she nudges me inside, only stepping on herself to press a lower floor button. "Derek's waiting for you down in the gym," She says, making some karate chop movements with her hands. "To train you on that door kickin' unsub ass bustin' fighting he does."

I've only known Penelope a few days, but she can never fail to make me laugh. I'm still giggling at her attempts to show me her unsub ass bustin' moves when the elevator door closes between us.

Hotch did mention to me on my first day here that he was going to get someone to make sure I'm up to scratch on the physical aspect of what they need for this job so I guess I shouldn't be all that surprised that it's Derek who is going to be training me.

You know what.. of course this happens to me. I move to a new city, meet a random guy in a bar and decide to have my first one night stand, only to find out he's my new co-worker. Typical.

Penelope gave me the tour of the whole building a few days ago so when I step off the elevator onto the basement floor, I know where I'm going to get to the gym.

Along with all the floors of offices, the bottom floor of this building also has a fully equipped gym, showers, a pool, a sauna and so many other facilities which I will be taking full advantage of to save myself a monthly gym membership payment.

I pause at the open glass door of the gym when I see Derek inside. He's sitting on the bench, shirtless in nothing but a pair of gray sweatpants. I'm flustered already. Gray sweatpants are almost every girls weakness.

He has his back to me, slowly bicep curling some dumbbells that look almost as heavy as me. I watch the muscles of his back and arms flex and contour with each rep and each smooth and controlled motion he makes.

"Are you going to stare all day or join me?"

My eyes snap to Derek's devilish grin through the back wall which is fully mirrored. I hadn't even noticed he could see me looking at him because I was too focused on looking at him. Damn it.

I walk through the door and don't even bother issuing him with a response because one thing I do know is that his ego doesn't need to be boosted any higher than it already is. He knows him attracted to him and he absolutely loves every second of it.

I drop my bag by the treadmill, shooting Derek a challenging look while I reach back to tie my hair in a quick braid. "You ready to get your ass kicked?"

Derek matches my competitive stare when he drops his dumbbell, grinning when he makes his way over to me. "You're on, Evans."

When my hair is out of my face I grab my bag again and brush past him towards the bathrooms to get changed.

While I make my way across the room, I try desperately not to focus on the way those sweatpants are hanging dangerously low on his hips and when the bathroom door closes behind me, I give myself a second to appreciate the mental image of his abs and the v line that disappears beneath the fabric.

This probably wouldn't be as hard if I didn't know what he's packing underneath his pants. But I do and it's torture.

It's seemingly torture for Derek too because when I step out of the bathroom, changed into my black sports bra and leggings, Derek's eyes slowly run up my body, muttering a quiet fuck when he scrubs his hand across his jaw and drags his eyes away like it's the last thing he wants to do.

I bite back the satisfied grin that threatens to spread across my face from knowing I make him feel the same way he makes me feel. Hot, flustered and horny but we both try to hide it.

Now that we're ready to get started, Derek contemplates for a second before he picks up a small weight, placing it down on the mat a couple feet in front of me. He steps aside, nodding towards it. "Okay," He says. "Place your hands on the ground beside the weight."

Confused on where he's going with this, I bend over and place my hands flat on the ground on either side of the dumbbell. Maybe it's some sort of stretching technique. "What's this for?" I ask, lifting my head to look at him through the mirror.

Derek's head is tilted to the side, his gaze completely focused on my ass. "My viewing pleasure," He says, sliding his tongue across his bottom lip.

Okay, maybe he's not trying to hide it at all. I teasingly roll my eyes, pushing myself back upright. "Just how I love to start every morning, with sexual harassment."

Derek's eyes playfully narrow at me. "So you can gawk at me but I can't? Sounds like a double standard."

I match his expression because he's completely right. I was ogling at him by the door not even five minutes ago. "Touché."

If it's wrong to want to flirt with my attractive co-worker than sue me, because I don't think Derek and I are going to stop this charade anytime soon.

As long as we can control our urges and not complicate things by sleeping together, again, we should be fine. We're both adults. We can let the sexual tension be just that. Tension.

Derek slips two punching pads over his hands, widening his stance when he plants his feet into the mat. He taps the mitts together, holding them up to me palm facing. "Show me what you got," He says, pumping his eyebrows.

While I start punching the pads with a combination of jabs, crosses and hooks, I let my mind wander over this whole situation Derek and I are in now because we decided to have slutty bathroom sex of all things.

No matter how much I want him again, we have to be just friends. I don't want to mess up my chances working here for the sake of great sex. Scratch that, great isn't the right word. Explosive, steamy, hot, animalistic, best sex I've ever had seem more appropriate.

I swear I've never felt that kind of passion during sex before, not even with long term boyfriends. It's like Derek knew exactly where to touch me, kiss me and knew exactly the right words to say to get me to drop my panties in public because he quite literally did.

But there's also the side of me that thinks maybe that kind of heat between two people during sex is normal for him. Just because I've never experienced that before doesn't mean he hasn't. The thought sets an unsettling feeling in the pit of my stomach. It's absolutely none of my business who he was ever with before so I have no idea why a small part of me is hoping he only experienced that with me too.

Look at me getting sappy over a one night stand. I laugh internally at myself. Dramatic.

Apparently my little laughing moment wasn't internal because Derek chuckles, throwing me an amused look when he drops his left hand. "You good?"

"I was imagining it was your face," I say, giving the right mitt one last hard punch. "I'm good now."

Derek undoes the velcro straps, slipping the mitts off his hands while a playful grin plays on his lips. "Don't even think about touching the money maker."

I'm not even surprised to hear those words leave his mouth. "Of course you would call your face a money maker."

He shrugs halfheartedly. "I'd call yours one too but that's not very friendly of me, is it?"

The past few days I've noticed him throwing the word friends around like that in an almost hypocritical way because it's obvious that we're both attracted to each other.

"Besides.." Derek continues, smirking. "If you mess up my face then where would you sit?"

Oh god. Now I'm imagining sitting on his face and just how much I want to do that. The second it crosses my mind, so does another sexual thought. And another. And another.

If we ever find our selves in a situation where that is a possibility, I really hope he has enough will power to stop it because I know I don't.

But knowing Derek, and seeing the way he's looking at me now, there's no way he'd stop us getting into another situation like the bar. In fact, he'd probably encourage it.

We are fucked.

Seemingly thinking the same thing, Derek clears his throat when he says, "Break time?"

I nod, shaking away my dirty thoughts. "Absolutely."

That small workout wasn't all that strenuous, but for some reason Derek and I both head straight for the water bottles , downing them in seconds flat. But of course they don't quench the kind of thirst we're both experiencing right now.

-

"—6, 7, 8, 9, 10–"

Derek and I have ditched the whole training thing because somehow, I'm not sure how it started, but he insisted he could hold my entire weight while doing push ups.

So naturally we made a bet and had to test his theory which is how I've ended up sitting cross legged on his back while he counts his push ups. I can't stop laughing, trying to keep myself steady while he effortlessly pushes himself up and down.

"—18, 19 and 20."

"Well I'll be damned," I laugh, locking my legs around his waist and clinging to him as he stands back up straight. "And you didn't even break a sweat."

Derek's hands slide over my thighs as he sets me gently back down on my feet, shooting me a playful look over his shoulder. "You owe me twenty bucks."

"Twenty?" I gasp, shoving his shoulder. "We only bet ten!"

Derek grins. "Call it a winners fee."

I roll my eyes at the teasing smile growing on his face. "Let's get back to training now."

"Alright," Derek says. "One on one. Let's go."

I know Hotch means well by setting this training day up with Derek for me, he obviously wants to have me prepared for the field rather than choke when I'm there, but I've always passed all my physical tests with flying colors.

But I have to say, training with Derek is really testing me. He's blocking my punches and I'm only blocking most of his punches because I'm too busy thinking about how much I'd rather be thrown around by those arms instead.

I'm thinking about it so much so that Derek catches me off guard by a subtle flick of his foot around my ankle that sends me off my balance.

Having just caught his right hook, my back hits the mat with a thud and Derek falls with me, landing on top of me with our legs tangled together. He catches himself before his weight fully crushes me beneath him. His mouth is inches from mine and our shared laboured breath crowds the room.

Not ready to admit defeat, I barely allow Derek a second to register what just happened before I lock my legs around his waist, rolling us and flipping him underneath me. We're both practically panting when I sit back on his hips, declaring my win when I hold both his hands, laced through mine and press them into the mat on the ground behind his head.

If anything, our breathing has just got heavier and when our eyes meet, the compromising position we've landed ourselves in is doing nothing for Derek's growing smirk.

His eyes drag down from my eyes to my legs straddling his hips and he chuckles in an almost strained way. "Not exactly how I pictured you riding me for the first time but I'll take it."

I brush my damp hair from my face before I cross my arms over my chest. "This is as close as you're going to get to that so enjoy it."

And enjoying it he is because the thing that's now nudging between my legs putting us into a situation that isn't every work place appropriate.

"Eh, Derek? You're getting—"

"Hard? I know. You're hot, sweaty, in minimal clothing on top of me and you expect me not to be turned on? I'm not perfect."

A devilish smile grows on my lips. For once I feel like I have the upper hand between us. He is at my mercy right now so once I cast a quick look over my shoulder, confirming no one else is around because what I'm about to do definitely isn't office friendly either.

When our gaze meets again, like he knows what I'm about to do, Derek narrows his eyes at me in a silent challenge, basically saying you wouldn't.

Oh, I would. Pressing down on him slightly and placing my hands on his chest, I give him one slow roll of my hips. Derek's mouth drops open in a quiet moan and his hands grip at my waist, silently begging for more.

I take his hands off me, placing them back down at his sides. Leaning over him, I bring my lips to his ear. "How bad do you want me to do that again?"

"So bad," He groans, subtly grinding against me. He tongue sweeps across his bottom lip. "Please, Layla, do it again."

The second those pleading words leave his lips, I roll off of his body and onto my feet, making my way out of the room.

It takes everything in me not to look back and see the shock and confusion on Derek's face, but his strained voice pretty much sums it up when he says, "What the fuck just happened?"

"I asked you if you wanted me to do it again," I smirk, picking up my bag on the way out. "I never said I was going to."

Finally casting him a quick look when I reach the door, Derek looks at a loss for words, still laying on the ground in the middle of the room with his hands covering his crotch. Despite the clear sexual frustration on his face, he also looks impressed.

He half laughs, half groans, rolling his head back to look at the ceiling. "Fuck you. I'm going to have blue balls now."

"Awe," I coo insincerely. "Good luck with that."

As good as that one roll of my hips felt for me too, walking out of this room with him in there aching for more of me is ten times more satisfying.

-

"Why is Derek so grumpy?"

I snicker, turning around in my desk chair at Emily's whispered comment. Clearly nothing goes unnoticed here.

After getting all showered up and changed, Derek and I headed back up to the office for the last hour of the day and he dug his head straight into his paperwork, not engaging in conversation with the rest of us.

His mood may look pissy to everyone else, but I know he's just planning all the ways he wants to get me back for my little stunt earlier.

"I'm not sure," I whisper back to Emily, shrugging.

Emily leans in closer, not looking totally convinced. "You would think he'd be in a great mood after spending an afternoon with a hot and sweaty version of you."

I snicker when I see the side of Derek's lip quirk up from his desk, clearly having caught Emily's comment. "I think he enjoyed it a little too much."

Before she can respond, we both look up when Hotch's office door opens. "Evan's," He says, directed at me as he makes his way over, holding a manila folder in hand. "I hope your training went well because we have your first case."

As we all grab our things from our desks and head towards the round table room, Derek stops before he brushes past me. "If that's how you want to play it.." He says in a hushed whisper, sliding his bottom lip between his teeth. "Then game on."

Somehow I don't think my first case is going to be the most interesting part of this weekend.

-

A/N: even though I'm still on vacation, I somehow found time to write this chapter. I clearly cant even take a break because I love this so much lol. I hope you enjoyed this chapter :)

Just like Spencer's story, cases won't really be talked about because I honestly don't feel like I can write them without it becoming too boring. What I am excited to write in the next chapter is Derek and Layla having a little slip up from their 'friendship'  ;)